Thread-carrier stop mechanism for full-fashioned knitting machines



v M. ZWICKY. THREAD CARRIER STOP MECHANISM FOR FULL FASHIONED KNITTING MACHINES.

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Specification of Letters Patent.

Patented Jan.3,1t922,,

Application filed January. 20,1920. Serial No. 352,797.

To aZZ whom it may concern:

Be it known that I, MELCHIOR ZWICKY, a citizen of the United States, residing at \Vyomissing, in the county of Berks and State of Pennsylvania, have invented certain new and useful Improvements in Thread-Carrier Stop Mechanism for-Full- Fashioned Knitting Machines, of which the following is a specification.

My invention relates to full fashioned knitting machines, and more particularly to stop mechanism for the thread-carrier rods thereof; the main object being to provide for conveniently utilizing one of the ordinary thread-carrier rods for effecting the knitting of special leg courses when desired, to make the work of transferring more easy for the toppers. The invention is i fully described in connection with the accompanying drawing and is clearly defined in the claims,

Fig. l is a cross-sectional view through "an end portion of a full fashioned knitting machine, showing a thread-carrier stop nut provided with in improvement and in connection with certain coacting parts.

Fig. 2 is a face view of said nut lookin in the direction of arrow 2 Fig. l; the

special carrier-rod stop lever being shown in operative position, with an inoperative position thereof indicated in dotted lines I and the ordinary retracted position.

stop lever being shown in 1g. 3 Fi 2.

The stop nut for the series of carrier rods 11, 11, corresponds in genera'lconstruction and arrangement, as shown, with that fully set forth in Janssen-Zwicky Patent No. 1,079,915 issued November 25, 1913; the sleeve portion 12 0f said'nut being engaged by the usual automatically operated thread carrier stop screw 13,'and independently movable stop leverslet, 14 for the respective rods 11 being mounted upon a transverse pivot pin 15 carried by spread ears 13, 17 at the nut.- The several thread is a plan viewcorresponding with carrier rods 11 are employed for different knitting operations, and are respectively movahle out of action when the correspondriers ,on such rod ing stop lever 14: is thrown to inoperative position.

Each of said stop levers 14: is adapted to positively limit the longitudinal movement of a corresponding carrier rod 11 as required; the several'rod connected friction boxes 18 on friction rod 19, to which mo-- such additional stop 25 is separately pivoted exteriorly to the nut ear contacting end portion 26 of movement of a carrier'rod 11 when in operative position, said end extending beyond that assumed by the withdrawn. stop 17, with its rod set into the line g 1i so as to stop said rod 11 a determined distance short of the maxnnum movement whichis permitted by the latter. This rod 11 I adapt to carry yarn of a diiierent color from the ordinary knitting thread, and the special stop lever '25 is adapted when throwninto operation in place of the regular stop 14, for the last or transverse courses of the leg, to supply such thread to determined needles only and thereby provide a contrasting color which facilitates the work of transferring. This same rod 11 may thus beusedselectively forthe purpose of knitting in thesespecial transfer courses, or for another purpose as heretofore, by employing in one case the special stop 25, and in the other the regular stop 14, the thread carbeing correspondingly arranged. The provision for thus conven= iently utilizing the reserve rod'for either one or another purpose extends the variety of work to which the machine is adapted without objectionably increasing the wor ing partsiand with simplified operation.

What I claim in:

1. In a full-fashioned knitting-machine having thread-carrier rods and a narrow.- ing screw; a stop nut on said screw carry- 5 ing a plurality of selectively usable stops for one rod each arranged to be moved into and out of end-abutting position.

2. In a, full-fashioned knitting machine I ,eonose 

